Cap-spinning frame



f? v I A38 Feb. 13, 1923.

R.BURGESS CAP SPINNING FRAME f Filed Mar. 14,'1922 a. l L 5 v ls-% r Fay/ Fay. 8.

- z entarx @Ca/t ail/x6 by 6am fwmaa rarest ROBERT BURGESS, O1? NEWTON CENTER, IVLASSACHUSETTS, ASSIGNOE Oi ONE-HAL TO JOSEPH H. JONES, OE WINTHROP, MASSACHUSETTS.

CAP-SPINNING FRAME.

Application filed March 1.4, 1922. Serial No. 5443,5893.

T all whom it may concern:

Be it known that 1, ROBERT Bun ass, a citizen oi? the United States, residing at Newton Center, in the county of Middlesex,

State of Massachusetts, have invented a certain new and useful Improvement in Gap- Spinning Frames, of which the following a specification; reference being had therein to the accompanying drawings.

The invention relates to cap spinning devices of the class in which a caprevolves substantially inunison with an associated spinning element (spindle or bobbin) upon which it is mounted. More specifically, it relates to the means through which driving action is communicated from the said spinning element to the cap in starting up a spinningframe from a state of rest.

The invention combines with a revoluble cap an improved clutch-device whereby it is connected operatively in improved manner and with improved results with the spindle or bobbin with which it arranged to cooperate. The said clutch-device embodies principles providing for a suitable driving engagement between the cap and the. said spindle or bobbin at the time of starting up, and for a relaxation of the clutching action after the cap has attained or approximated 3.0 a suitable speed of revolution. it is of centrifugal type.

An illustrative embodiment of the features of the invention is shown in he accompanying drawings, in which latter;- Fig]. is a view in side elevation of :crtain parts of a cap spinning frame with various rails in cross-section, illustratingthe connection in which the invention is applied and used in practice.

Fig. 2 is somewhat similar view of some of the parts of Fig. 1 on a larger scale than Fig. 1, with the cap in'vertical section, illustrating the clutch-device which is described hereinafter.

Fig. 3 is a View in side elevation of the clutch-unit, separately, detached from the cap of Figs. 1 and2l Fig. 4 shows the said clutch-unit in plan.

5'shows the clutch-unit in vertical 56 section in the plane indicated by line 5 5,

in Fig. 4c.

Fig. 6 shows the clutch-unit in horizontal section in the plane indicated by dotted lines 6, 6, in Fig. 3.

At 1 Fig. 1, is a portion ofthe threadboard of a spinning frame, the said threadboard havinghingcd thereto at 2, in usual manner, above each spinning spindle a block 3 carrying a guide a through which the yarn v m that is being spun by thesaid spindle is controlled and guided between the front rolls and the spindle. At 5 is a spindle rail having mounted thereon in usual manner the bearing support 6 of thespinning spindle '1". such spindle being in this instance of the well-known sleeve-whirl type and being driven by means of a band 8 encircling the spindle-whirl '71. At 9, Figs. 1 and 2, is a quill or. bobbin mounted upon the spindle blade. nt 10 is a revolving cap such as aforesaid, cooperating with the said quill or bobbin 9. At 11 in Figs. 1 and 2, is a pivot or capsupporting wheel coacting with the cap 10; at 12, is a mounting for the pivot or wheel 11; and at 13 is a supporting rail for the mounting l2.

As indicated best in Fig. 9., the head of the cap 10 has a central hole to accommodate the hide or barrel of the spinning element with which the cap is combined in operation, such hole being hushed, at a. The central opening of. the bushing is proportioned so that the bushing has a close but easy sliding fit upon the said blade or barrel. Such fit, while sufficiently close to permit the cap to be rotated by means of the frictional engagement between the contacting surfaces of the blade or barrel and bushing, nevertheless permits the cap to gravitate downward upon the spinning element in question until the cap is supported through its flaring periphery resting upon-the cap-contacting peripheral portion of the pivot 11, and also permits the traverse movements of the cap relative to the said blade or, barrel which are required to take place for the distribution of the twisted yarn upon such blade or barrel in being wound thereon. These traversing movements are due in practice to movements of. rail 13 relative to rail 5, or vice versa.

tional contact between the periphery. of the blade or barrel of a spinning element and the inner surface of the bushing of the cooperating cap has been depended upon to produce the required rotation of the cap. This. however has the drawback that in starting up a spinning frame fl'Oll'i a state of rest, as for instance after a stoppage of the lleretofore. in some instances, the frictilting the cap laterally relative to the ion gitudinal axis of the spinning element upon which" it is mounted. The results attained in practice have notbeen satisfactory in any one of these instances. in accordance with the present invention 1 provide a clutch-device characterized by the employment of a plurality of radially-movable members, as 12,1), '6, Figs. 2 to 6, arranged in a series around the central opening of the cap, gently pressed inward so as to engage lightly with the surface of the blade or barrel of the spinning element, to aid by clutclraction to cause the cap to begin simul aneously with the spinning element to revolve when the spinning frame is started up from a state of rest, as after a stoppage for the purpose of piecing-up broken ends of yarn, and permitte'dto displace outward by centrifugal action so as to reduce the clutching action after the cap has attained a predetermined speed of rotation, and leave the cap to be driven through frictional engagement with the blade or barrel of the spinning element.

In the illustrated embodiment of this portion; of the present invention the clutchnenrb'ers F), Z), Z), are held in place in connection with the bushing a by being contained in sockets in the upper portion of the said bushing. The inner portions of the 'el uteh-ineili'ibers project inward from the said sockets into the central opening of the bushing 'sirflici'ently to make contact with the blade or barrel of the spinning element 9, as will appear from Figs. 2, 4i, 5 and 6. The inward pressure aforesaid is derived from a light -spring strip 0 in the shape of a split annulus, which encircles the series of clutch-members and contacts with the outer portions of such members, as shown in Figs. 2, 5 "and 6. For the accommodation of the spring 0, the upper portion of the bus ing is enlarged so as to form a radial flange or head, and the latter is grooved to form a seat for the spring. The construction adopted by preference in practice is as ilhistrated in Figs. 2 to 6, and in the case thereof the bushing, clutclrmembers, and spring constitute aclutoh-unit. The connection of the said clutch-unit with the body of the cap may be established by molding the said body arouna'l the bushing, when such body is made of plastic material, such for instance as bakelite, and produced by molding. Or the lower portion of the bushing may be externally screw-threaded, and the central opening in the body of the cap may be correspondingly internally threaded, and the clutch-unit may be screwed into place.

The form, etc., of the clutch-members may be varied in practice. They are rounded to facilitate the movement of a cap down into place over the upper end of the spinning element to which it is applied. Preferably, though not necessarily in all cases in practice, they are of revoluble character, balls for instance, in order that they may have a rolling contact with the periphery of the spinning element 9, which renders the clutching action gentler and more uniform. Such rolling contact facilitates the movement of a cap vertically upon its spinning element as the traverse rail rises and falls, and it obviates injury, as for instance to the spinning element, cap, or pivot, as well as avoids interference with the ascending movement of the pivot-supporting rail in case a spindle-band breaks and the spinning element ceases to rotate, in which case the centrifugal action of the clutchanembers terminates and the clutch-device might cling tightly to the spinning element and prevent the cap from moving vertically relative to the latter if the rolling contact did not provide for such relative movement.

hie liability in the event of sticking of the clutch, is that of scoring the blade or bzirrrel of the spinning element through the engagement of the clutch elements therewith in the ascending movement of the pivot-sup porting rail.

What is claimed as the invention is z 1. In cap-spinning mechanism, the combination with a revolubl'e spinning element and a cap mounted upon the blade or barrel of such element, of a plurality of clutch-elements arranged in a circular series, lightly held pressed'inward for frictional contact with the periphery of said blade or barrel, and adapted to move outward under the action of centrifugal force.

2. In cap-spinning mechanism, the combination with a revo l uble' spinning element and a cap mounted upon the blade or bar rel of such element, of a plurality of revol uble clutch elements arranged in a circular series, lightly held pressed inward for frictional contact with the periphery of said blade or barrel, and adapted to inove outward under the action ef centrifugal force.

3. In cap-spinning mechanism, thecombination with a revoluble spinning element, and a cap mounted upon the blade or barrel of such element, of a friction clutch carried bysaid cap eon-rprisi-ng a series of balls lightly pressed inward into contact with said blade or barrel and. moving outward from the axis of the blade or barrel under the action of centrifugal force.

a. In cap-spinning mechanism, the combination with a revoluble spinning element, and a cap mounted upon the blade or barrel of such element, of a clutch-unit, carried by the said cap comprising a bushing, a series of clutch-members radially movable under the influence of centrifugal force, and a spring encircling said series and lightly pressing the clutch-members inward.

5. In cap spinning mechanism, the combination with a revoluble spinning element, and a live cap mounted upon the blade or barrel of such element, of a clutch operating through light frictional engagement of its clutch element or elements with the blade or barrel of the spinning element to cause the cap to rotate substantially in unison with the spinning element, said clutch element or elements adapted to roll in contact with such blade or barrel during vertical movement of the cap relative thereto.

6. In cap spinning mechanism, the coin bination with a revoluble spinning element, and a cap having a central opening with an easy sliding fit upon the blade or barrel of such element, of a plurality of clutch elements arranged in a circular series concentric with said central opening, lightly pressed inward for contact with the periphery of said blade or barrel, and adapted to move outward under the action of centrifugal force.

7. In cap spinning mechanism, the combination with a revoluble spinning element, and a cap having a central opening with an easy sliding fit upon the blade or -barrel of such element, of a plurality of revoluble clutch elements arranged in a circular series concentric with said central opening, lightly pressed inward for contact with the periphery of said blade or barrel, and adapted to move outward under the action of centrifugal force.

8. In cap spinning mechanism, the combination with a revoluble spinning element, and a cap having a central opening with an easy sliding fit upon the blade or barrel of such element, of a friction clutch carried by said cap comprising a series of balls lightly pressed inward into contact with said blade or barrel and moving outward from the axis of the blade or barrel under the action of centrifugal force.

9. In cap spinning mechanism, the com-- bination with a revoluble spinning element, and a cap having a central opening with an easy sliding fit upon the blade or barrel of such element, of a clutch-unit, carried by the said cap comprising a bushing, a series of clutch-members radially movable under the influence of centrifugal force, and a spring encircling said series and lightly pressing the clutch-members inward.

In testimony whereof I affix my signature in presence of two witnesses.

RUBERT BURGESS. Witnesses:

CHAS; F. RANDALL, ELLEN Q SPRING. 

